Jose Mourinho hit the headlines for his behaviour in Turin this week.
Man United were outplayed by Juventus at Old Trafford a fortnight ago - but the Red Devils recovered from a goal down to win 2-1 at the Juventus Stadium on Wednesday night.
Cristiano Ronaldo had initially given the hosts the lead with a superb volley.
But Juan Mata came off the bench to score a lovely free-kick in the 86th minute and Leonardi Bonucci scored an own goal three minutes later.
Mourinho spent two years at Inter Milan and was very animated at the full-time whistle.
The enigmatic 55-year-old coach caused a commotion and explained why he cupped his ears to the home supporters after the game.
“I was insulted for 90 minutes,” Mourinho said. “I do my work and nothing more. At the end I didn’t insult anyone, I just did the gesture that I wanted to hear them more. I wouldn’t do it again.
"But I came here as a professional that does his work and people insulted my family, this is why I reacted this way. I don’t want to think about it.”
Hoping to compete for the Scudetto this season, Napoli boss Carlo Ancelotti was asked about Mourinho's behaviour.
"Sorry. I did not hear you," joked Ancelotti, while cupping a hand to his ear.
Ancelotti continued: "Being insulted for 90 minutes isn't nice. Therefore, Mourinho's reaction is completely understandable.
"It wasn't anything vulgar. It was more sarcastic which after 90 minutes of insults can happen.
"The real problem is the 90 minutes of insults. It's not something that just happens at the Juventus Stadium - it's in the culture of Italian football.
"It also happens in Naples and Milano. Enough already."
Ancelotti is firmly on Mourinho's side.
The Man United boss recently avoided a touchline ban for swearing into a BT Sport television camera after the 3-2 win over Newcastle.
Was Mourinho within his rights to taunt the Juventus supporters? Let us know your opinion by leaving a comment below.